MEDIUM
Earn 100

The substance that causes the allergic reaction is known as _____.

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Important Questions on Immune System

EASY
Explain the mechanism by which HIV multiplies and leads to AIDS.
EASY
Which of the following is not an autoimmune disease?
MEDIUM
At which stage of HIV infection does one usually show symptoms of AIDS?
EASY
Explain the mechanism by which HIV multiplies and leads to AIDS.
EASY
HIV that causes AIDS, first starts destroying:
MEDIUM
In which category of allergens do pollen, pet dander, and smoke include, whether it is airborne or waterborne?
HARD
Allergies cannot be caused by microorganisms. 
HARD
Which of the following is/are the symptom/s of an allergic reaction?
MEDIUM
Name the inflammatory chemical released by the basophils causing skin reaction and constriction of the bronchioles.
EASY

Natural rubber is an example of _____ allergens.

MEDIUM
Describe the symptoms caused in sunlight allergy.
MEDIUM
Fill in the blank with the correct option from the bracket.
Natural rubber is an example of _____ allergens. (airborne, food-borne, contact, water-borne)
EASY

Choose the correct option.

Contact with a stinging nettle causes

HARD
Airborne allergens do not cause skin allergies.
MEDIUM

Match the items given under column I with those given under column II:

 Column I   Column II
(i) Dust allergy (a) Nuts
(ii) Food allergy (b) Pollen
(iii) Seasonal allergy (c) Asthma

 

EASY

Choose the correct option.

Dust mites and cockroaches trigger allergies through their

MEDIUM
Dust mites and cockroaches trigger allergies through their